Head-motion for looms.



No. 795.254- PATENTED JULY 18, 1905.

G. S.,GOX.

HEAD MOTION FOR LOOMS. APPLICATION FILED NOV. 19, 1904.

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PATENTED JULY 18, 1905.

S. 00X. HEAD MOTION FOR. LOOMS.

APPLIUATION FILED NOV. 19, 1904.

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NTTED STATES Patented July 18, 1905.

PATENT OFFICE.

GEORGE S. COX, OF FITZWATERTOWVN, PENNSYLVANIA, ASSIGNOR TO HIMSELF, ANDIVALTER S. COX, OF PH lLAD'ELPI-IIA, PENNSYLVANIA, TRADING AS GEORGE S.COX AND BROTHER.

HEAD-MOTION FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No. 795,254, dated July 18,1905.

Original application filed July 27, 1904, Serial No. 218,322. Dividedand this application filed November 19, 1904. Serial No. 233,421.

To all whom, it may concern: I

Be it known that I, GEORGE S. Oox, a citizen of the United States,residing at Fitzwatertown, county of Montgomery, and State ofPennsylvania, have invented a new and useful Improvement in Head-Motionsfor Looms, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, whichform a part of this specification.

The object of my invention is to provide a head-motion for looms bymeans of which any device on the loom may be caused to operateintermittently and momentarily.

This application is a division of an application filed by me July 27,1904:, Serial No. 218,322, for an improvement in hair-cloth loomswherein the invention described and shown as adapted to actuatemechanism for moving two troughs containing hair of different colorsalternately into and out of operative relation with the selector,whereby the selector is caused to select hair alternately from the twotroughs, thus forming cloth in which the weft consists of two or moredifferent colors. The invention forming the subject-matter of thisapplication is not, however, limited to the actuation of such, or any,weft-changing mechanism, but may be utilized for the purpose ofoperating any devices on the 100111 which it is desired to occasionallythrow into action at predetermined times, and therefore the descriptionand drawings of this application are confined to the novel mechanismembodying my invention and mechanism immediately associated therewith.

The invention consists of the general and specific construction andarrangement of devices hereinafter described and claimed.

In the drawings, Figure 1 is a plan view of the shedding-motion andpattern mechanism for controlling its actuation, including my novelhead-motion. Fig. 2 is a section on the line 2 2 of Fig. 1. Fig. 3 is afront elevation of the same, and Fig. i is a perspective view showingthe mechanism for moving the pawl-lever out of engagement with theratchetwheel for actuating the pattern-drum.

a is the frame of the shedding-motion.

is the usual oscillating shaft, having secured thereto the usualdouble-ended levers 29 29.

26 represents the usual notched draw-bars of an ordinary closed -shedmachine, each draw-bar being made in two sections hinged together at 261and having one end 26 notched and adapted to be engaged by theconstantlyreciprocating knife 27 of the shedding-motion. This knife isconnected by connecting-rods 28 with the upper arms of the double-endedlevers 29, secured to the shaft 50. The lower arms of levers 29 areconnected by links 291 with the cross-bar or sliding rack 270, which isadapted at each oscillation of the shaft 50 (as in the ordinaryclosed-shed machine) to push each draw-bar 26 into position to beengaged by the knife 27 when the notched end 26 of the draw-bar isdropped, as hereinafter described. The invention relates to the meansfor causing the notched end of one of the draw-bars to drop and to besubsequently restored to its uplifted position, the said drawbar beingconnected to the weft-changing or other mechanism that it is desired tothrow into action at predetermined times.

The shaft 50 is oscillated by means of a rod 30 and lever 290, which arereciprocated by means of connections from the cam-shaft. (Not hereinshown.)

2A is a flexible connection the upper end of which extends over a roller25 and is secured to a lever 240, pivoted on the frame. The lower end ofthe flexible connection 24: is connected with any weft-changing or othermechanism that it is desired to operate. The lever 24:0 is alsoconnected by a wire 260 with one end of the particular draw-bar 26 thatis arranged to be operated by the mechanism hereinafter describedembodying my invention.

262 is a spring, one end of which is secured to the lever 240, while theother end is secured to the frame. The spring serves to pull troughs, soas to move one hair-trough out of the draw-bar toward its inoperativeposition (to the left, Fig. 3; to the right, Fig. 2) when it is notbeing moved in the opposite direction by the sliding rack 270 or theknife 2?.

Normally the knife 27 is ineffective to actuate the draw-bar 26 when thelatter at each oscillation of the shaft 50 is moved forwardly by thesliding rack 270, as the notched end of the draw-bar is held above thepath of travel of the knife by means of one end of a pivoted lever 3st.The other end of lever 34 rests on a support 340 and is provided with aboss 35, that is in line of travel with the lugs 37 of a pattern-chain38. -\Vhen one of the lugs of the pattern-chain travels under the boss35 and lifts it and the corresponding end of the lever 34:, the otherend of lever 3a is lowered and the hooked end 26 of the draw-bar 26 Pdrops. Then, as before described, the knife 27 actuates the draw-bar 26,which, through the medium of the connections 260 and. Q4, operates theweft-changing or other mechanism that it is designed to operate. Thepatternchain extends over the the sprocket-wheel 38, which, togetherwith the pattern-drum L6 and ratchet wheel 47, is secured to the shaft39.

i5 is a pawl-lever pivoted to an arm 450, secured to shaft 50. At eachoscillation of the shaft 50 the pawl-lever t?) actuates the ratchetwheel47, thereby turning the pattern-drum and the pattern-chain.

In the application of which this is adivision the flexible connection 2%actuates mechanism which shifts a slide containing two hairoperativerelation with the selector and the other hair-trough into operativerelation with the selector. lf the selector misses a hair, however, itis necessary to stop the operation of the pattern-shaft, and mechanismfor this purpose is set forth in said application. I have thereindescribed how the failure of the selector to pick a hair from the troughthrows into action a chain of mechanism (not herein described) forlifting the rod 81.

63 is a shaft turning in bearings 0n the top of the loom-frame.

80 is a lever secured to shaft 63. The rod 81 is pivoted to lever 80, sothat whenever the selector misses a hair the shaft 63 is turned in itsbearings.

is a stud sliding in guides 61 and adapted to be raised by the free endof a lever 62, secured to the shaft 63. As the shaft 63 turns the stud60 is raised, thereby lifting the pawllover a?) out of engagement withthe ratchetwheel M.

It will be understood that if the lug of the pattern-chain 36 remainedunder the lever 3 L and held up lever 31 and then the selector 5 misseda hair the resultant disengagement of the pawl-lever 45 from theratchet-wheel 47, just described, would cause the pattern-chain toremain stationary, and the lug thereon, continuing to hold up the lever3%, would cause i the draw-bar to be again engaged by the knife and thehair-troughs to be again shifted. This is obviated by arranging the lugson the chain out of alinement with the pins 4,60 on the pattern-drum, sothat when the ratchet-wheel a7 is turned a distance of one teeth a lineof pins e60 is brought immediately under the corresponding draw-bars,while the lug on the pattern-chain passes under and beyond the lever 34,The lug therefore merely lifts the lever 3st and does not hold itup, thelatter function being effected by a weighted bell-crank lever 65, theunweighted arm having a hook 66 at one end which engages a notch 67 onthe lever 34 when the latter is lifted by the patternchain lug. Asbefore described, when the lever 34 is lifted the draw-bar 26 drops, andthe knife 27 then actuates the draw-bar to operate the chain ofmechanism for shifting the hairtroughs.

68 is a bracket secured to the lraw-bar 26, said bracket having a hookedend 680.

650 is a pin on the hooked end of the bellcrank lever 65, said pin beingin line of travel of the hooked end of the bracket. During thelast-described operation of the drawbar just before it has completed itsmovement the hooked end of the bracket 68 strikes the pin 650, pullingthe hooked arm of the bell-crank lever to the right, Fig. 2, withdrawingthe hook 66 from under the notched end of lever 34 and permitting thelatter to drop.

Having now fully described my invention, what I claim, and desire toprotect by Letters Patent, is"

1. In a loom, in combination, a draw-bar, a constantly-reciprocatingknife adapted to actuate said draw-bar, pattern mechanism, a leveractuated by said pattern mechanism to control the movement of saiddraw-bar into and out of the line of movement of said knife, and adevice adapted, when said lever is so actuated, to hold it in theposition to which it is moved by said. pattern mechanism, substantiallyas described.

2. In a loom, in combination, a draw-bar, a constantlyreciprocatingknife adapted to actuate said draw-bar. pattern mechanism, a leveractuated by said pattern mechanism to control the movement of saiddraw-bar into and out of the line of movement of said. knife, a deviceto hold said lever in the position to which it is moved by said patternmechanism, and means operated by said knife operating to return saidlever to its normal position, substantially as described.

In a loom, in combination, a draw-bar, a eonstantly-reciprocating knifeadapted to actuate said draw-bar, pattern mechanism, a lever actuated bysaid pattern mechanism to control the movement of said draw-bar into andout of the line of movementof said knife,

; a device to hold said level in the position to which it is moved bysaid pattern mechamsm, and a bracket on the draw-bar adapted, when thedraw-bar is so actuated by the knife, to engage said device anddisengage it from said lever, thereby causing the latter to return toits normal position, substantially as described.

4. In a loom, in combination, a draw-bar, a constantly-reciprocatingknife adapted to actuate said draw-bar, pattern mechanism, a leveractuated by said pattern mechanism to control the movement of saiddraw-bar into and out of the line of movement of said knife, a hookedlever adapted to engage said lever When it is so moved by said patternmechanism and hold it in operative position, and a bracket on thedraw-bar adapted, when the draw-bar is so actuated by the knife, toengage said hooked lever and disengage it from the first lever, therebypermitting the latter to return to its inoperative position,substantially as described.

In testimony of which invention I have hereunto set my hand, atPhiladelphia, on this 17th day of November, 190a.

GEORGE S. COX.

Witnesses:

M. M. HAMILTON, T. B. Wool).

